2.3.AC Characteristics
VCC=5.0V±10%
Parameter
Enable Cycle Time
Symbol
tCYC
Conditions
Fig.1, 2
Fig.1, 2
Fig.1, 2
Fig.1, 2
Fig.1, 2
Fig.1
Min.
500
230
－
Max.
Units
ns
－
－
20
－
－
－
－
160
－
Enable Pulse Width
Enable Rise/Fall Time
Address Setup Time
Address Hold Time
PWEH
ns
t t
Er, Ef
ns
tAS
tAH
40
ns
10
ns
tDSW
tDHW
tDDR
tDHR
Write Data Setup Time
Write Data Hold Time
Read Data Delay Time
Read Data Hold Time
80
ns
Fig.1
10
ns
Fig.2
－
ns
Fig.2
5
ns
V
V
IH
IH
RS
R/W
E
VIL
VIL
tAS
tAH
VIL
VIL
PWEH
r
tE
t
Ef
VIH
VIH
VIL
VIL
VIL
tDSW
tDHW
VIH
VIL
VIH
VIL
～
DB0 DB7
Valid Data
tCYC
Fig.1 Write Operation Timing
V
V
IH
IH
RS
R/W
E
VIL
VIL
tAS
tAH
VIH
VIH
PWEH
r
tE
f
tE
VIH
VIH
VIL
VIL
VIL
tDDR
tDHR
VOH
VOL
VOH
VOL
～
DB0 DB7
Valid Data
tCYC
Fig.2 Read Operation Timing
DMC40457 (AA) No.99-0117
OPTREX CORPORATION
Page 4/15
OPTREX
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